Hook for singletrees



UNITED STATES PATENT OFFICE. I

ISAAC BURGETT, OF MIDDLEBURG, NEBRASKA.

HOOK FOR SINGLETREES.

SPECIFICATION forming part of Letters Patent No. 588,126, dated August17, 1897.

Application filed May 27, 1897. Serial No. 638,397. (No model.)

To all whom, t 71u01/ concern:

Be it known that I, ISAAC BURGETT, of Middleburg, in the county ofRichardson and State of Nebraska, have invented certain new and usefulImprovements in Hooks for Singletrees 5 and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to hooks for singletrees; and it consists,essentially, of a bifurcated head in which is pivotally mounted aspring-actuated arm having free movement and devoid oflocking-shouldersin connection with the spring.

The invention further consists of the details of construction andarrangement of the several paris, which will be more fully hereinafterdescribed and claimed.

The object of the present invention is to provide a simple hook forwhifletrees having a spring action and so arranged relatively to thespring as to prevent fracture or breakage of the latter and at the sametime sustain a retention of the tug or trace on the end of thesingletree and also provide for ready detachment when the parts areproperly manipulated. v

In the accompanying drawings, Figure l is a detail perspective view of awhiffletree-hook embodying the invention and showing a portion of atrace in engagement therewith. Fig. 2 is a section on the line a: ofFig. l. Fig. 3 is a detail perspective view of the locking-armdisconnected.

Referring to the drawings, wherein similar numerals of reference areemployed to indicate corresponding parts in the several views, thenumeral l designates a tongue or shank which is inserted in the end of asingletree and is provided with an outer head 2, which is verticallybifurcated or slotted, as at 3. The said slot 3 merges into a recess eton the under part of the head, and therein is a do'g 5, which ispivotally attached and has bearing against the end of a flat spring G,which extends longitudinally of the head in a longitudinal plane, so asto bring a square engaging end against the inner side of the dog. At

the point where the spring 6 engages the dog the latter is recessed, asat 7, and at the lower end the said arm is also tapered to a thin edge,

while at the upper end it is thickened and has an outer beveled portion8. The inner surface of the said dog at the rear is cut away at a bevel,as at 9, and bears upon a shoulder l0, formed at the upper terminationof the slot to prevent said dog from being moved inward beyond apredetermined vertical position, and thereby is formed a secureattachment of the trace end with the hook.

In applying the trace it is slipped over the upper end of the arm andthe lower reduced end pressed inward until the trace passes thereover.The lower end of said arm is then permitted to fly out through theaction of the spring and close over the eye in the trace, and anytendency of the trace to work off the head is prevented by the upper andlower projections of the said arm, as the latter is prevented fromtilting through the medium of the shoulder l0, formed on the upper partof the slotted portion 3. By the engagement of the upper shoulder l()and the beveled portion of the inner side of the headlockingshouldersfor the spring need not be formed and aredispensed'with, thereby simplifying the construction of the locking-armand making the device as an entirety much stronger and less liable tobreak the spring 6. In removing the trace the same operation is pursuedas in applying it, the eye in the trace being iirst slipped over theupper end of the locking-arm, when it can readily be drawn over thelower portion.

The parts of the device-maybe ornamented in any preferred manner, and inView of the simplicity of construction it is inexpensive in the cost ofmanufacture, and it is obviously apparent that many minor changes in thedetails of construction and arrangement of the several parts 'might bemade and substituted for those shown and described without in the leastdeparting from the nature or spirit of shoulderat the upper portionthereof,a spring extending outwardly into the slot, and au arm pivotallymounted in said slot and having a reduced lower end and an enlargedupper end with an outer beveled surface and an inner out-away parttoengage the shoulder at the upper part of the slot in the head, said armnormally extending beyond the head on opposite sides thereof and movableinwardly at 1o the lower en d in attaching or detaehing the trace,substantially as and for the purpose specified. f

` In testimony 'whereof I have signed this specification in the presenceof two subscribing,` Witnesses.

Witnesses:

GEO. H. PEAKE, OSCAR KERR.

ISAAC BURGETT.

